fix: improve setup of default export and remove `svelte/ssr` (#8516)

CHANGELOG.md

@@ -2,9 +2,11 @@
 
 ## Unreleased (4.0)
 
-* **breaking** Minimum supported Node version is now Node 14
-* **breaking** Minimum supported webpack version is now webpack 5
-* **breaking** Minimum supported TypeScript version is now TypeScript 5 (it will likely work with lower versions, but we make no guarantees about that)
+* **breaking** Minimum supported Node version is now Node 14 ((#8482)[https://github.com/sveltejs/svelte/pull/8482])
+* **breaking** Minimum supported webpack version is now webpack 5 ((#8515)[https://github.com/sveltejs/svelte/pull/8515])
+* **breaking** Bundlers must specify the `browser` condition when building a frontend bundle for the browser ((#8516)[https://github.com/sveltejs/svelte/pull/8516])
+* **breaking** Minimum supported vite-plugin-svelte version is now 2.1.1. SvelteKit users can upgrade to 1.15.9 or newer to ensure a compatible version ((#8516)[https://github.com/sveltejs/svelte/pull/8516])
+* **breaking** Minimum supported TypeScript version is now TypeScript 5 (it will likely work with lower versions, but we make no guarantees about that) ((#8488)[https://github.com/sveltejs/svelte/pull/8488])
 * **breaking** Stricter types for `createEventDispatcher` (see PR for migration instructions) ([#7224](https://github.com/sveltejs/svelte/pull/7224))
 * **breaking** Stricter types for `Action` and `ActionReturn` (see PR for migration instructions) ([#7224](https://github.com/sveltejs/svelte/pull/7224))
 * **breaking** Stricter types for `onMount` - now throws a type error when returning a function asynchronously to catch potential mistakes around callback functions (see PR for migration instructions) ([#8136](https://github.com/sveltejs/svelte/pull/8136))

package.json

@@ -28,12 +28,8 @@
         "import": "./index.mjs",
         "require": "./index.js"
       },
-      "node": {
-        "import": "./ssr.mjs",
-        "require": "./ssr.js"
-      },
-      "import": "./index.mjs",
-      "require": "./index.js"
+      "import": "./ssr.mjs",
+      "require": "./ssr.js"
     },
     "./compiler": {
       "types": "./types/compiler/index.d.ts",
@@ -78,11 +74,6 @@
     },
     "./elements": {
       "types": "./elements/index.d.ts"
-    },
-    "./ssr": {
-      "types": "./types/runtime/index.d.ts",
-      "import": "./ssr.mjs",
-      "require": "./ssr.js"
     }
   },
   "engines": {